Pick tender bottle gourd . Wash it .Peel and dice gourd into small pieces. Keep them aside.
Wash moong dal nicely 1- 2 times , add haldi to it and pressure cook with tomato and Green chillies. You can pressure cook bottle gourd and dal together by placing the vessel one above the other in the cooker ( pot in pot out method )
On medium flame cook 2 whistles or cook till soft. Usually , moong dal doesn’t take long to cook .Once pressure releases , mash the cooked dal and keep aside. Keep the veggie aside too.
In a pan add oil and ghee .Prepare tempering. Splutter mustard and jeera .Add broken red chilli pieces , hing and curry leaves. Saute 1-2 mins.
Add chopped Onion, grated ginger .If using garlic , add them too. Saute till onions are translucent .Add red chilli powder and saute a min .
add cooked mashed dal and cooked veggie . Add salt to taste and tamarind pulp . Add water to adjust the consistency . Simmer and boil dal for 3-4 mins..
lastly add coriander leaves .
Lauki dal is ready to serve . Enjoy withi Roti / phulka / rice etc